本文实例讲述了PHP按指定键值对二维数组进行排序的方法。分享给大家供大家参考,具体如下:
问题:
有数组:
复制代码 代码如下:
array(0=>array('id'=>1,'price'=>50),1=>array('id'=>2,'price'=>60));
要求根据数组的price这个字段进行排序。
实现代码如下:
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<?php
$array [] = array ( 'id' =>1, 'price' =>50);
$array [] = array ( 'id' =>2, 'price' =>70);
$array [] = array ( 'id' =>3, 'price' =>30);
$array [] = array ( 'id' =>4, 'price' =>20);
foreach ( $array as $key => $value ){
$id [ $key ] = $value [ 'id' ];
$price [ $key ] = $value [ 'price' ];
}
array_multisort ( $price ,SORT_NUMERIC,SORT_DESC, $id ,SORT_STRING,SORT_ASC, $array );
echo '<pre>' ;
print_r( $array );
echo '</pre>' ;
?>
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运行结果:
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Array
(
[0] => Array
(
[id] => 2
[price] => 70
)
[1] => Array
(
[id] => 1
[price] => 50
)
[2] => Array
(
[id] => 3
[price] => 30
)
[3] => Array
(
[id] => 4
[price] => 20
)
)
|
希望本文所述对大家PHP程序设计有所帮助。